Desa Tech CGD3930P, CGD3018P, CGD3924P Optional Positioning Of Thermostat Sensing Bulb

OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB

For Masonry and

Factory-built

Metal Fireplace

If your log set cycles to pilot, but the room temperature drops to a lower than ideal comfort level before the log set comes back on, you may want to reposition the thermostat sensing bulb.

The thermostat sensing bulb is located near the gas valve assembly on the mounting bracket. This location allows the thermostat to keep the room temperature at an ideal comfort level for most fireplace applications. For positioning the thermostat sensing bulb elsewhere, an adhesive-backed mounting clip has been provided.

Tools needed: 1/4" hex driver or socket

1. Remove logs. Locate the gas valve assembly and thermostat sensing blub (see Figure 27).

Gas Valve

Assembly

Mounting	Thermostat
Bracket
	Sensing Bulb

Figure 27 - Location of Gas Valve Assembly and Thermostat Sensing Bulb

2.The adhesive-backed mounting clip (see Figure 28) is attached to the thermostat sensing bulb. Remove the adhesive-backed mounting clip.

Figure 28 - Adhesive-backed Mounting Clip

3.With 1/4" hex driver or socket, loosen the thermostat screw. Carefully slide the thermo- stat sensing bulb out of the retaining clamp (see Figure 29).

Note: Do not remove the screw. Make sure you tighten the screw after removing the thermostat sensing bulb.

IMPORTANT: Do not force or bend the thermostat sensing bulb or capillary.

Capillary	Thermostat Screw
Retaining Clamp	Thermostat
	Sensing Bulb

Figure 29 - Removing Thermostat Sensing Bulb

4.The thermostat sensing bulb may be located to the lower right front side of fireplace. Determine location of sensing bulb, but do not mount sensing bulb until step 5. If you

have a masonry fireplace, see Figure 30 on page 30 for location. Continued 29

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